Layered-substance-containing solution and method of manufacturing same

Abstract

A solution containing an ionic liquid, a polymer compound including at least one of a hydrolyzable polymer compound and a thermally-decomposable polymer compound, and a laminate of layered substances is irradiated with at least one of sonic waves and radio waves. Alternatively, a solution containing an ionic liquid, a polymer compound including at least one of a hydrolyzable polymer compound and a thermally-decomposable polymer compound, and a laminate of layered substances is heated.

The invention claimed is: 
     
       1. A layered-substance-containing solution comprising a mixture of:
 an ionic liquid; 
 a polymer compound including a polyalkylene glycol as a hydrolyzable polymer compound and optionally a thermally-decomposable polymer compound; and 
 a layered substance, wherein 
 the polyalkylene glycol is polypropylene glycol or polytetramethylene glycol, 
 and the polyalkylene glycol has a weight-average molecular weight of from 600 to 70000, both inclusive. 
 
     
     
       2. The layered-substance-containing solution according to  claim 1 , wherein
 the thermally-decomposable polymer compound is present and includes at least one of compounds each causing a decrease in weight at a temperature of 180 degrees Celsius or lower when the weight is measured by thermogravimetry (TG: Thermogravimetry). 
 
     
     
       3. The layered-substance-containing solution according to  claim 1 , wherein the weight-average molecular weight of the polyalkylene glycol is from 2000 to 40000, both inclusive. 
     
     
       4. The layered-substance-containing solution according to  claim 1 , wherein the polyalkylene glycol is present in an amount of from 5 wt % to 95 wt %, both inclusive, of the layered-substance-containing solution. 
     
     
       5. The layered-substance-containing solution according to  claim 4 , wherein the amount of the polyalkylene glycol is from 20 wt % to 75 wt %, both inclusive, of the layered-substance-containing solution. 
     
     
       6. The layered-substance-containing solution according to  claim 1 , wherein the ionic liquid is present in an amount of from 5 wt % to 98 wt %, both inclusive, of the layered-substance-containing solution. 
     
     
       7. The layered-substance-containing solution according to  claim 6 , wherein the amount of the ionic liquid is from 25 wt % to 80 wt %, both inclusive, of the layered-substance-containing solution. 
     
     
       8. The layered-substance-containing solution according to  claim 1 , wherein the layered substance is natural or expanded graphite. 
     
     
       9. The layered-substance-containing solution according to  claim 1 , wherein the layered substance is a multiple-element layered substance selected from the group consisting of metal chalcogenide, metal oxide, metal oxyhalide, metal phosphate, clay mineral, silicate, double hydroxide, layered titanium oxide, layered perovskite oxide, and boron nitrides.